EP0200323A2
Expired / Lapsed
EP
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Oral hygiene composition
Assignee: Beecham Group PLC
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Filing: 1986-03-19
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Granted: —
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Expires: 2006-03-19
Abstract
Abstract An oral hygiene composition comprising a silica base, from 1 to 10% by weight of the composition of a water soluble non-toxic strontium salt, a fluoride source providing from 250 ppm to 2000 ppm of fluoride in the composition, and a dentally acceptable carrier, provided that when the strontium salt is other than strontium acetate the silica base has a BET surface area of from 60 to 400 m 2 /g. The composition has improved anti-sensitivity properties coupled with high levels of available fluorine.
Inventors
- 👤 Philip Leigh Straw
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 05:37
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/36; A61Q; A61Q11/00; A61K8/19; A61K8/20; A61K8/21; A61K8/25
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
70 words
An oral hygiene composition comprising a silica base, from 1 to 10% by weight of the composition of a water soluble non-toxic strontium salt, a fluoride source providing from 250 ppm to 2000 ppm of fluoride in the composition, and a dentally acceptable carrier, provided that when the strontium salt is other than strontium acetate the silica base has a BET surface area from 50 to 400 m 2 /g.
Claim 2
Dependent Claim
70 words
An oral hygiene composition comprising a silica base, from 1 to 10% by weight of the composition of a water soluble non-toxic strontium salt, a fluoride source providing from 250 ppm to 2000 ppm of fluoride in the composition, and a dentally acceptable carrier, provided that when the strontium salt is other than strontium acetate the silica base has a BET surface area from 50 to 400 m 2 /g.
Claim 3
Dependent Claim
20 words
A composition according to claim 1, in which the BET surface area is from 100 to 300 m 2 /g.
Claim 4
Dependent Claim
27 words
A composition according to claim 1 or claim 2 in which the strontium salt is selected from strontium acetate,strontium chloride, strontium nitrate, strontium lactate and strontium bromide.
Claim 5
Dependent Claim
28 words
A composition according to any one of claims 1 to 3, in which the silica base is present in an amount of from 8 to 32% by weight.
Claim 6
Dependent Claim
17 words
A composition according to claim 4, in which the silica base comprises precipitated silica or silica gel.
Claim 7
Dependent Claim
26 words
A composition according to any one of claims 1 to 5, in which the fluoride source comprises an alkali metal fluoride and/or an alkali metal monofluorophosphate.
Claim 8
Dependent Claim
18 words
A composition according to any one of claims 1 to 6, containing a non-ionic or low ionic surfactant.
Claim 9
Dependent Claim
19 words
A composition according to any one of claims 1 to 7 containing a non-ionic gum as a gelling agent.
Claim 10
Dependent Claim
21 words
A composition according to any one of claims 1 to 8 in the form of a toothpaste or dental powder formulation.
References Cited (Backward Citations)
No citation records indexed.
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